Modify it, oh my god modify it.
Trying to play the game with the original view distance, I found it a messy and frustrating experience. A quick google though provided me with the same camera scripts i'd used in Dark Crusade, and voila, I can see a tactically sensible proportion of the battlefield at a time (roughly three or four times as wide a perspective as before, and zoomed further out).
WHY do the devs try and hinder you with the crazy close up perspective? Isn't this a strategy game?
Anyway, if you own dawn of war and haven't downloaded some camera .lua's yet, I thoroughly reccomend you do. It won't interfere with your ability to play online, and it instantly makes the game far more enjoyable.